US2719785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal compositions
Assignee: California Research LLC
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Filing: 1952-06-02
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Granted: 1955-10-04
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Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Gordon B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:08
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04; C; C09; C09K; C09K23/00; C09K23/017; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN EMULSIFIER, EACH 100 PARTS BY WEIGHT WHEREOF ON NON-AQUEOUS BASIS COMPRISES ABOUT 25 TO ABOUT 40 PARTS BY WEIGHT OF A C4-ALIPHATIC ALCOHOL AND FROM ABOUT 75 TO ABOUT 60 PARTS BY WEIGHT OF AN ANIONIC SURFACE-ACTIVE AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM C9-C18 MONOALKYL BENZENE SULFONATES AND SODIUM C9-C18 MONOALKYLSULFATES AND CONTAINING INTERMATELY ADMIXED THERWITH FROM ABOUT 2 TO ABOUT 15% BY WEIGHT OF SODIUM SULFATE, BASED ON THE COMBINED WEIGHT OF NON-AQUEOUS INGREDIENTS OF SAID SURFACE-ACTIVE AGENT, SAID EMULSIFIER BEING CAPABLE OF EMULSIFYING IN WATER AN AROMATIC PETROLEUM HYDROCARBON OIL BOILING BETWEEN ABOUT 300 AND ABOUT 750* F. AND CONTAINING IN SOLUTION A WEED-KILLING TOXICANT FROM THE GROUP CONSISTING OF PENTACHLOROPHENOL, 2,4-DICHLOROPHENOXYACETIC ACID AND THEIR SALT AND ESTER DERIVATIVES.
Claim 2
Dependent Claim
124 words
AN EMULSIFIER, EACH 100 PARTS BY WEIGHT WHEREOF ON NON-AQUEOUS BASIS COMPRISES ABOUT 25 TO ABOUT 40 PARTS BY WEIGHT OF A C4-ALIPHATIC ALCOHOL AND FROM ABOUT 75 TO ABOUT 60 PARTS BY WEIGHT OF AN ANIONIC SURFACE-ACTIVE AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM C9-C18 MONOALKYL BENZENE SULFONATES AND SODIUM C9-C18 MONOALKYLSULFATES AND CONTAINING INTERMATELY ADMIXED THERWITH FROM ABOUT 2 TO ABOUT 15% BY WEIGHT OF SODIUM SULFATE, BASED ON THE COMBINED WEIGHT OF NON-AQUEOUS INGREDIENTS OF SAID SURFACE-ACTIVE AGENT, SAID EMULSIFIER BEING CAPABLE OF EMULSIFYING IN WATER AN AROMATIC PETROLEUM HYDROCARBON OIL BOILING BETWEEN ABOUT 300 AND ABOUT 750* F. AND CONTAINING IN SOLUTION A WEED-KILLING TOXICANT FROM THE GROUP CONSISTING OF PENTACHLOROPHENOL, 2,4-DICHLOROPHENOXYACETIC ACID AND THEIR SALT AND ESTER DERIVATIVES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |